Sea Ledger, February 2009

2009-02-01 to 2009-02-28 · archive

issued: 349
warning-days in force: 7,791
in force at month end: 258
sea × type cells: 175

baseline: same month, previous 5 years (2008-02, 2007-02, 2006-02, 2005-02, 2004-02)

By type

type	issued	warning-days	in force at end
Exercises	64	631.3	18
Nav aids	62	1,921.8	60
Cable ops	48	969.4	37
Incidents	46	742	20
Quakes	41	121.1	4
Surveys	17	1,915.6	68
Spills	16	249	7
Other	14	374.1	14
Derelicts	14	56.1	1
Icebergs	8	52.7	1
Missiles	5	60	2
Wrecks	4	407.3	17
Containers	3	21.6	1
Piracy	3	42	1
Ordnance	1	43.5	1
Debris	1	35.3	2
Volcanic	1	84	3
Structures	1	18.4	1
War risk	0	23.5	0
Restricted	0	22.7	0

By sea and type · 175 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	25	159.1	7	112	1.3× / 19.6
Quakes · Philippine Seasurge	13	39	0	—	5.9× / 2.2
Surveys · Mediterranean Sea - Eastern Basinsurge	11	47.8	1	86	28× / 0.4
Quakes · South Pacific Ocean	11	34.2	0	—	1.1× / 10.4
Derelicts · North Atlantic Oceansurge	10	39.9	1	20	8.3× / 1.2
Spills · Gulf of Mexicosurge	9	144	3	41	2.6× / 3.4
Exercises · North Pacific Ocean	9	88.6	1	36	1.0× / 9
Exercises · South Atlantic Oceansurge	9	65.8	1	45	5.6× / 1.6
Exercises · Yellow Seasurge	9	51.3	2	30	5.6× / 1.6
Incidents · North Pacific Ocean	8	116.1	3	53	1.6× / 5
Nav aids · Gulf of Alaskasurge	8	8.7	1	25	40× / 0.2
Nav aids · North Sea	7	168.8	6	329	1.8× / 4
Nav aids · North Atlantic Oceansurge	7	56	3	236	3.2× / 2.2
Cable ops · Bay of Bengalsurge	6	194.9	7	80	3.3× / 1.8
Exercises · Laccadive Sea	6	41.7	2	30	0.9× / 6.6
Exercises · Japan Seasurge	6	36.6	2	30	3.3× / 1.8
Incidents · South Atlantic Ocean	6	26.9	2	17	1.3× / 4.8
Incidents · Indian Oceansurge	5	107	1	37	2.3× / 2.2
Other · South Atlantic Oceansurge	5	75.5	3	29	5.0× / 1
Missiles · North Pacific Ocean	5	60	2	34	1.1× / 4.4
Nav aids · English Channel	5	31.8	1	31	1.9× / 2.6
Quakes · Molukka Seasurge	5	15	0	—	5.0× / 1
Nav aids · South Atlantic Oceanlong running	4	304.9	9	466	1.8× / 2.2
Incidents · North Atlantic Oceansurge	4	136.8	5	69	2.0× / 2
Nav aids · Irish Sea and St. George's Channelsurge	4	66	2	132	2.9× / 1.4
Nav aids · Celtic Seasurge	4	65.4	0	—	2.9× / 1.4
Incidents · South Pacific Ocean	4	65	1	49	0.5× / 8.2
Spills · North Atlantic Ocean	4	64	2	42	1.4× / 2.8
Icebergs · South Atlantic Ocean	4	31.7	0	—	0.9× / 4.4
Exercises · South Pacific Oceansurge	4	10.7	0	—	5.0× / 0.8
Nav aids · The Coastal Waters of Southeast Alaska and British Columbiasurge	4	7.9	0	—	20× / 0.2
Incidents · Coral Sea	4	2.8	0	—	1.7× / 2.4
Exercises · North Atlantic Ocean	3	45.8	1	30	0.6× / 5.2
Exercises · Bay of Bengal	3	44.7	1	31	0.5× / 6
Nav aids · Coral Sea	3	41.1	2	361	1.4× / 2.2
Other · Arabian Seasurge	3	30.3	2	19	5.0× / 0.6
Exercises · Arabian Sea	3	29.9	0	—	0.6× / 4.8
Incidents · Persian Gulfnew	3	19.5	0	—	new / 0
Exercises · Baltic Seasurge	3	19.1	1	23	5.0× / 0.6
Icebergs · Labrador Seasurge	3	14.8	1	17	15× / 0.2
Quakes · North Pacific Ocean	3	9.9	1	28	0.8× / 3.8
Quakes · Indian Ocean	3	9	0	—	0.6× / 5.2
Nav aids · Gulf of Mexicolong running	2	114.7	3	505	2.5× / 0.8
Cable ops · Arabian Sea	2	83.3	3	29	0.4× / 4.8
Wrecks · South Atlantic Oceannew	2	73.9	4	140	new / 0
Incidents · Mediterranean Sea - Eastern Basin	2	47.6	3	41	0.8× / 2.6
Spills · North Pacific Ocean	2	25	1	23	1.7× / 1.2
Exercises · Philippine Sea	2	20.4	1	21	1.4× / 1.4
Cable ops · Laccadive Sea	2	18.4	1	39	5.0× / 0.4
Containers · Mediterranean Sea - Western Basin	2	9.9	1	22	10× / 0.2
Nav aids · Mediterranean Sea - Western Basin	2	9.9	0	—	2.5× / 0.8
Cable ops · English Channel	2	9.3	1	9	1.7× / 1.2
Derelicts · Indian Ocean	2	9.3	0	—	5.0× / 0.4
Cable ops · Mediterranean Sea - Western Basin	2	5.4	2	4	2.5× / 0.8
Nav aids · Great Australian Bight	2	4.2	0	—	5.0× / 0.4
Nav aids · Timor Seanew	2	3.9	0	—	new / 0
Quakes · Southern Ocean	2	3.4	1	10	5.0× / 0.4
Other · North Pacific Ocean	2	2.2	0	—	2.0× / 1
Other · North Sea	2	1	0	—	1.7× / 1.2
Nav aids · North Pacific Oceanlong running	1	307	8	505	5.0× / 0.2
Nav aids · South Pacific Oceanlong running	1	104.2	3	630	0.7× / 1.4
Cable ops · Mediterranean Sea - Eastern Basin	1	97.4	2	44	0.3× / 3
Cable ops · Caribbean Sea	1	84	3	289	1.0× / 1
Incidents · Philippine Sea	1	58.2	1	48	0.3× / 3.4
Nav aids · Indian Ocean	1	56.1	2	338	0.8× / 1.2
Cable ops · Gulf of Mexico	1	56	2	67	5.0× / 0.2
Cable ops · South Pacific Ocean	1	50.7	1	54	2.5× / 0.4
Wrecks · English Channel	1	45.1	2	221	2.5× / 0.4
Nav aids · Red Sea	1	42.2	2	162	new / 0
Other · Indian Ocean	1	41.4	1	255	new / 0
Cable ops · Indian Ocean	1	34.6	2	134	1.0× / 1
Incidents · Japan Sea	1	32.9	1	28	1.0× / 1
Nav aids · Inner Seas off the West Coast of Scotland	1	31.4	2	78	0.3× / 3.4
Cable ops · Gulf of Suez	1	31.2	1	92	2.5× / 0.4
Exercises · South China Sea	1	30.1	1	30	1.7× / 0.6
Surveys · South Atlantic Ocean	1	28.8	1	45	0.5× / 2.2
Surveys · Mediterranean Sea - Western Basin	1	28	1	93	5.0× / 0.2
Volcanic · Philippine Sea	1	28	1	238	1.3× / 0.8
Surveys · Timor Sea	1	28	1	34	new / 0
Other · Ionian Sea	1	27.7	1	60	new / 0
Incidents · Bay of Biscay	1	26.1	1	26	1.7× / 0.6
Surveys · Irish Sea and St. George's Channel	1	24.3	1	24	5.0× / 0.2
Nav aids · Mozambique Channel	1	24.1	1	24	0.6× / 1.8
Exercises · Alboran Sea	1	19.4	1	19	new / 0
Cable ops · Eastern China Sea	1	18.6	1	18	1.7× / 0.6
Incidents · Mozambique Channel	1	18.4	1	18	1.0× / 1
Structures · North Atlantic Ocean	1	18.4	1	18	new / 0
Surveys · Gulf of Guinea	1	16.3	1	16	new / 0
Cable ops · Gulf of Guinea	1	15.4	1	15	1.3× / 0.8
Incidents · South China Sea	1	13.5	0	—	0.5× / 2
Ordnance · Arabian Sea	1	10.6	0	—	new / 0
Incidents · Mediterranean Sea - Western Basin	1	9.5	1	9	new / 0
Wrecks · Bay of Bengal	1	8.3	1	8	new / 0
Cable ops · Singapore Strait	1	7.4	1	7	new / 0
Piracy · Malacca Strait	1	7.3	0	—	new / 0
Containers · North Atlantic Ocean	1	6.7	0	—	0.3× / 4
Surveys · Bass Strait	1	6.4	0	—	2.5× / 0.4
Incidents · Caribbean Sea	1	6.4	0	—	5.0× / 0.2
Debris · Gulf of Mexico	1	6.3	1	6	new / 0
Icebergs · North Atlantic Ocean	1	6.2	0	—	0.7× / 1.4
Exercises · Andaman or Burma Sea	1	5	0	—	1.7× / 0.6
Nav aids · Bass Strait	1	4.4	0	—	5.0× / 0.2
Spills · Bering Sea	1	4	1	4	new / 0
Piracy · Gulf of Aden	1	3.9	0	—	new / 0
Exercises · Gulf of Mexico	1	3	0	—	2.5× / 0.4
Quakes · Ionian Sea	1	3	0	—	5.0× / 0.2
Quakes · Solomon Sea	1	3	0	—	0.6× / 1.6
Exercises · Celtic Sea	1	2.9	0	—	new / 0
Piracy · Arabian Sea	1	2.8	0	—	new / 0
Derelicts · North Pacific Ocean	1	2.5	0	—	2.5× / 0.4
Quakes · South China Sea	1	2.5	1	2	new / 0
Quakes · Banda Sea	1	2.1	1	2	1.7× / 0.6
Incidents · Solomon Sea	1	1.9	0	—	new / 0
Incidents · Southern Ocean	1	1.5	0	—	1.7× / 0.6
Nav aids · Bristol Channel	1	0.7	0	—	1.3× / 0.8
Exercises · Coral Sea	1	0.7	0	—	new / 0
Derelicts · Celtic Sea	1	0.4	0	—	new / 0
Exercises · Mediterranean Sea - Eastern Basin	1	0.2	0	—	0.4× / 2.6
Incidents · Gulf of Guinea	1	0.1	0	—	new / 0
Surveys · Beaufort Sealong running	0	672	24	1,878	— / 0
Surveys · Arctic Oceanlong running	0	448	16	1,878	— / 0
Nav aids · Gulf of Californialong running	0	229	7	425	— / 0
Surveys · Baffin Baylong running	0	168	6	1,976	— / 0
Surveys · The Northwestern Passageslong running	0	168	6	861	— / 0
Exercises · Aegean Sea	0	112	4	36	0.0× / 2
Nav aids · Gulf of Suez	0	84	3	302	— / 0
Surveys · Laptev Sealong running	0	84	3	1,012	— / 0
Wrecks · Persian Gulf	0	84	3	106	0.0× / 1.2
Wrecks · The Northwestern Passages	0	84	3	175	— / 0
Volcanic · Indian Ocean	0	56	2	255	— / 0
Nav aids · Malacca Strait	0	56	2	229	0.0× / 0.2
Surveys · Malacca Strait	0	56	2	234	— / 0
Other · Mediterranean Sea - Eastern Basinlong running	0	56	2	461	0.0× / 0.2
Nav aids · Persian Gulf	0	39.8	1	128	0.0× / 0.4
Incidents · Laccadive Sea	0	33.8	0	—	0.0× / 0.4
Debris · Arctic Oceanlong running	0	28	1	1,530	— / 0
Other · Arctic Oceanlong running	0	28	1	543	— / 0
Surveys · Bering Sea	0	28	1	135	— / 0
Other · Bismarck Sea	0	28	1	73	— / 0
Surveys · Chukchi Sealong running	0	28	1	1,411	— / 0
Other · Coral Sea	0	28	1	100	— / 0
Surveys · Greenland Sealong running	0	28	1	2,194	— / 0
Other · Gulf of Aqaba	0	28	1	34	— / 0
Surveys · Gulf of Suezlong running	0	28	1	395	0.0× / 0.4
Wrecks · Inner Seas off the West Coast of Scotland	0	28	1	71	— / 0
Wrecks · Laccadive Sea	0	28	1	333	0.0× / 0.2
Cable ops · North Atlantic Ocean	0	28	1	34	0.0× / 3.4
Wrecks · North Atlantic Ocean	0	28	1	277	0.0× / 0.2
Ordnance · North Sea	0	28	1	120	0.0× / 0.2
Piracy · Persian Gulflong running	0	28	1	416	0.0× / 0.4
Surveys · Persian Gulf	0	28	1	186	0.0× / 0.4
Nav aids · Sea of Okhotsk	0	28	1	47	— / 0
Nav aids · South China Sea	0	28	1	342	— / 0
Other · South China Sea	0	28	1	227	— / 0
Wrecks · South China Sealong running	0	28	1	584	— / 0
Cable ops · Sulu Sea	0	28	1	206	— / 0
War risk · Mediterranean Sea - Eastern Basin	0	23.5	0	—	— / 0
Restricted · North Atlantic Ocean	0	22.7	0	—	0.0× / 1
Cable ops · North Pacific Ocean	0	19.5	0	—	— / 0
Incidents · Tyrrhenian Sea	0	13.4	0	—	— / 0
Spills · The Coastal Waters of Southeast Alaska and British Columbia	0	12	0	—	0.0× / 0.6
Cable ops · Yellow Sea	0	9.4	0	—	— / 0
Cable ops · Persian Gulf	0	6.4	0	—	0.0× / 1.2
Cable ops · South China Sea	0	6.4	0	—	0.0× / 0.8
Cable ops · Bali Sea	0	6	0	—	— / 0
Containers · Celtic Sea	0	5	0	—	0.0× / 1
Ordnance · Persian Gulf	0	4.9	0	—	— / 0
Incidents · Bay of Bengal	0	4.2	0	—	0.0× / 1
Derelicts · South China Sea	0	4	0	—	0.0× / 0.2
Nav aids · Mediterranean Sea - Eastern Basin	0	3.6	0	—	0.0× / 0.2
Exercises · Indian Ocean	0	2.7	0	—	— / 0
Debris · North Atlantic Ocean	0	1	0	—	0.0× / 0.4
Exercises · Arctic Ocean	0	0.7	0	—	— / 0
Incidents · Arafura Sea	0	0.4	0	—	0.0× / 0.6
Cable ops · Andaman or Burma Sea	0	0	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2009-02, retrieved 2026-09-03

Not for navigation. Warning-days = days each warning was in force within the month, summed. Only warnings we display are counted; the ratio compares warnings issued with the mean of the reference months.